package hello;

public class erweishuzu {
	public static void main(String[] args) {
		int a [][] = new int [3][4];
		for(int i = 0; i < a[i].length; i++){
			for(int j = 0 ;j < a[i].length; j++){
				System.out.println(a[i][j]);
			}
		System.out.println();
	}

		
	}

}
